No more spawning at Tirion Fordring for new Death Knights, it looks like the Death Knight Citadel of Acherus, The Ebon Hold, is now implemented on the Beta servers, reports beta tester Jayde. The Ebon Hold, which is located on the eastern edge of the Eastern Plaguelands, will be where all new Death Knights start.
What's more interesting is that some of the first new quest text seems to imply that new Death Knights are still under the control of the Lich King, as the quest "The Eye of Acherus" sends you to a beacon on top of the hold to report to the Lich King himself. So apparently, you will in fact have to quest to break free of the Lich King -- but you start the quests on the Death Knight. Of course, we'll know as soon as we can get more information from the servers.
Another mechanic of the Death Knight that seems to have popped up for the first time is the concept of Runeforged Weapons. However, this is not the switching of Blood, Unholy, and Frost runes that has been previously discussed-- rather, it appears that the forging instead applies buffs to your weapons. The two examples shown by Jayde's screenshots are as follows:
Rune of the Fallen Crusader: Affixes your Rune Weapon with a rune that has a chance to heal you for 3% and increase Strength by 30% for 15 seconds. Modifying your rune weapon requires a Rune Forge in Ebon Hold.
Rune of Lichbane: Affixes your Rune Weapon with a rune that has a chance to strike the undead for extra fire damage and stun them for 5 seconds. Modifying your rune weapon requires a Rune Forge in Ebon Hold.